From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760082AbZFOKJl (ORCPT ); Mon, 15 Jun 2009 06:09:41 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755100AbZFOKJc (ORCPT ); Mon, 15 Jun 2009 06:09:32 -0400 Received: from 74-93-104-97-Washington.hfc.comcastbusiness.net ([74.93.104.97]:59090 "EHLO sunset.davemloft.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753264AbZFOKJc (ORCPT ); Mon, 15 Jun 2009 06:09:32 -0400 Date: Mon, 15 Jun 2009 03:09:34 -0700 (PDT) Message-Id: <20090615.030934.193678346.davem@davemloft.net> To: tiwai@suse.de Cc: bzolnier@gmail.com, sven.koehler@gmail.com, linux-kernel@vger.kernel.org Subject: Re: sound skipping regression introduced in 2.6.30-rc8 From: David Miller In-Reply-To: References: <20090615.022547.107684868.davem@davemloft.net> X-Mailer: Mew version 6.2.51 on Emacs 22.1 / Mule 5.0 (SAKAKI) Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Takashi Iwai Date: Mon, 15 Jun 2009 11:48:43 +0200 > The below is a revised patch. It has an additional sanity check. > Please give it a try. This is significantly worse. It skips many times every second. It even skips at least once per second with xrun_debug set to "5". [340486.694613] intel8x0_measure_ac97_clock: measured 50109 usecs (2416 samples) [340486.694620] intel8x0: clocking to 48000 [340542.816403] PCM: hw_ptr skipping! [Q] (pos=16280, delta=16280, period=1024, jdelta=2/33/0) [340542.837725] PCM: hw_ptr skipping! [Q] (pos=16280, delta=16280, period=1024, jdelta=5/33/1) [340542.859059] PCM: hw_ptr skipping! [Q] (pos=16280, delta=15256, period=1024, jdelta=2/31/0) [340542.868179] PCM: hw_ptr skipping! (pos=16280, delta=15256, period=1024, jdelta=3/31) [340542.869193] PCM: hw_ptr skipping! (pos=16280, delta=15256, period=1024, jdelta=3/31) [340542.869364] PCM: hw_ptr skipping! (pos=16280, delta=15256, period=1024, jdelta=3/31) [340542.869384] PCM: hw_ptr skipping! (pos=16280, delta=15256, period=1024, jdelta=3/31) [340542.880392] PCM: hw_ptr skipping! [Q] (pos=16280, delta=15256, period=1024, jdelta=4/31/1) [340542.890488] PCM: hw_ptr skipping! (pos=16280, delta=14232, period=1024, jdelta=1/29) [340542.890508] PCM: hw_ptr skipping! (pos=16280, delta=14232, period=1024, jdelta=1/29)